[dedward]

I seem to recall an article from some years back about someone using welding goggles with multiple layers of a specific blue filter on a very bright day and being able to see near-IR.. or something darn close to it.

[jerf]

I think you're thinking of this: http://amasci.com/amateur/irgoggl.html

It did take a bit for me to dig it up... I actually ended up having to use Google image search because I remember the guy talking about how trees looked. Without that I got a series of short uninteresting breathless YouTube videos on the topic and a whole bunch of contentless reblogging of said video that drowned out the original article.